The new AF540FGZ II is designed with the active photographer in mind and feature significant upgrades like the PENTAX original weather sealing (AW) technology and a new constant light source, making it as robust and versatile as the PENTAX weather-sealed DSLRs and lenses that it will accompany.
With a guide number of 178 at ISO 100/ft (54 at ISO 100/m) the Pentax AF540FGZ II flashe provides a variety of advanced flash applications, including P-TTL auto flash, high-speed synchronization and wireless P-TTL auto flash. Additionally The Pentax AF540FGZ II features a LED light to act as a constant light source for video and long exposure photography, while quick recycle times of five seconds on the AF540FGZ II ensure that a shot is never missed.
|Guide Number||119' (ISO 100 at 85mm)
69' (ISO 100 at 24mm)
|Bounce Capability||Vertical bounce possible, click stops provided, lock provided at 0°
Rightward: 0°, 30°, 60°, 90°, 120°, 150°, 180°
Leftward: 0°, 30°, 60°, 90°, 135°
Upward: 0°, 30°, 45°, 60°, 75°, 90°
Downward: 0°, -10°
|Auto Settings||Wireless Flash (Control system) Optical pulse transmission (Wireless position) Master (M), Control (C), Slave (S) (Channels) 1 to 4 Compatible modes: P-TTL, manual (M) Effective range: Approx. 4 m (When set to SL1, According to our testing conditions.)|
|Angle of Coverage||Auto zoom enabled with autofocus compatible camera and lens combination.|
|Flash Duration||Flash duration (1/2 peak each) (M1/1) flash: Approx. 1/1200 sec. (P-TTL) Fastestduration time: Approx. 1/20000 sec.|
|Power Source||Four AA batteries, (Alkaline (LR6), Nickel-Metal Hydride (Ni-MH), or Lithium (FR6))|
|Dimensions (W x H x D)||68 mm (W) × 111 mm (H) × 106 mm (T) (2.6" × 4.3" × 4.1")|
|Weight||Approx. 290 g (10.2 oz.) without batteries|